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Convair F2Y Sea Dart

21.2k TheGoldenEagle55  1.7 years ago

Hi everyone


The Convair F2Y Sea Dart was an American seaplane fighter aircraft that rode on twin hydro-skis during takeoff and landing. It flew only as a prototype, and never entered mass production. It is the only seaplane to have exceeded the speed of sound.

The Sea Dart began as Convair's entry in a 1948 U.S. Navy contest for a supersonic interceptor aircraft.[1] At the time, there was much skepticism about operating supersonic aircraft from carrier decks. In order to address this issue, U.S. Navy ordered many subsonic fighters. The worry had some foundation, since many supersonic designs of the time required long takeoff rolls, had high approach speeds, and were not very stable or easy to control—all factors that were troublesome on a carrier.

Ernest Stout's team at Convair's hydrodynamic research laboratory proposed to put a Delta Dagger on water skis.

Convair's proposal gained an order for two prototypes in late 1951. Twelve production aircraft were ordered before a prototype had even flown. No armament was ever fitted to any Sea Dart built, but the plan was to arm the production aircraft with four 20mm Colt Mk12 cannon and a battery of folding-fin unguided rockets. Four of this order were redesignated as service test vehicles, and an additional eight production aircraft were soon ordered as well.

The underpowered engines made the fighter sluggish, and the hydro-skis were not as successful as hoped; they created violent vibration during takeoff and landing, despite the shock-absorbing oleo legs they were extended on. Work on the skis and legs improved this situation somewhat, but they were unable to resolve the sluggish performance. The Sea Dart proved incapable of supersonic speed in level flight with the J34 engines; not helping was its pre-area rule shape, which meant higher transonic drag

On 4 November 1954, Sea Dart BuNo 135762 disintegrated in midair over San Diego Bay during a demonstration for naval officials and the press, killing Convair test pilot Charles E. Richbourg when he inadvertently exceeded the airframe's limitations. Richbourg was a 31-year-old Navy veteran of the Second World War. He was quickly pulled from the water but did not survive the airframe breakage. He was buried in St. Augustine National Cemetery in Florida.

Even before that, the Navy had been losing interest (problems with supersonic fighters on carrier decks having been overcome) and the crash relegated the Sea Dart program to experimental status. All production aircraft were cancelled, though the remaining three service test examples were completed. The two final prototypes never flew.


Role:Seaplane fighter

National origin:United States


First flight:14 January 1953


Primary user:United States Navy

Number built: 5


For takeoff put Trim full down ( only for takeoff) and 100% of power in the engines

Landing should not be a problem put the thrust of the engines at 3% and activate AG8 (if you had deactivated it)



General Characteristics

  • Created On Android
  • Wingspan 39.4ft (12.0m)
  • Length 61.9ft (18.9m)
  • Height 23.9ft (7.3m)
  • Empty Weight 25,789lbs (11,697kg)
  • Loaded Weight 44,966lbs (20,396kg)


  • Power/Weight Ratio 1.499
  • Wing Loading 17.6lbs/ft2 (86.1kg/m2)
  • Wing Area 2,549.0ft2 (236.8m2)
  • Drag Points 10781


  • Number of Parts 140
  • Control Surfaces 8
  • Performance Cost 767
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    55.9k Sergio666

    Np,its an amazing and beautiful plane! @Countryman35

    +1 1.7 years ago
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    @Sergio666 thanks!

    +1 1.7 years ago
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    55.9k Sergio666

    Incredible construction, today I was reading some information about this plane, and I precisely see this great plane! Great job

    +1 1.7 years ago
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    36.9k Trainzo

    Great build .

    +2 1.7 years ago